Lavatory drain valve



F. H. SCHNEIDER LAvAfromr DRAIN VALVE Filed April 24, 19:55y

/Zi e Patented Dec. 8, 1936 UNITED STATES PATENT oFFlCE LAVATOBY DRAIN VALVE Frank H. Schneider, Louisville, Ky.

Application April 24, 1933, Serial No. 667,635 3 claims..l (ol. 4-201) My invention relates to drain valves for washand other new and useful features of construcbowls and such vessels and, also, to the means of tion, arrangement and combination of parts as operating such valves. And the objects of my illustrated in the accompanying drawing; but it invention are,-rst, to devise neatly-appearing should be understood, of course, that various 5 and practical means for operating such drain modifications, to facilitate economical fabrication 5' valves; second, to provide novel form of the valves or otherwise, may be made in the dimensions nowin use to render them adaptable to my new and particular details of the construction herein means of operation; third, to design new and useillustrated, without departing from the scope of ful contiguous parts therefor, and four, to demy invention as set out in this specificationand vise means for locking the drain valve in its casthe appended claims. And with this general pur- 10? lng so that it cannot be drawn therefrom withpose and these special objects in view, thereout the use of a key or other suitable tools. fore, I will now proceed to describe my inven- All of these objects I attain in my present intion in detail, pointing out the new and useful vention; and my new and useful lavatory drain features and explaining the uses and operations l l5 Valve illustrated in the accompanying drawing of the individual parts and combinations there-y 15 which forms apart of this specification, is a pracof, as illustrated in the drawing herein delintical device embodying the aforesaid novel means eated in which similar characters refer to similar and other new and useful details of construction, parts throughout the several views. arrangement and combination of parts; all of Referring to the drawing, the lavatory bowl I 2o' which, together with their functions, will be deis of the ordinary wall type but, for the sake of 20'* scribed in detail With referenee t0 Said drawing clearness in representation, is here shown withand Will be definitely pointed Out in the Claims out visible means of support and may be made of that follow the description. metalor vitrious material; and the supply faucet In Said draWingr 2 may be separate from the bowl and set above Figure 1 is a longitu nal section of my new the upper edge of the bowl or set below as an in- 25vr drain valve, contiguous parts and its operative tegral supply faucet.

mechanism installed on an ordinary waShbOWl The present form,y however, as illustrated in` here shown in section. Fig. 1 of the drawing, is sufcient to show the Fig. 2 is a side elevation of the cylindrical valve construction and principle of my invention, l casing embodied in my invention. wherein I have devised a vertically disposed oscil- 30 Fig. 3 is a detail view in longitudinal section lating crank-spindle 4 whose lower end is rigidly 0f my drain valve and its contiguous parts; the locked in its lower casing 4c which is rotatably bowl and Operative mechanism being shown in secured in a rigidly nxed horizontal bracket '1;` K Part. and whose upper end is operative in a water- Fig. 4 iS a Side elevatien 0f the vertically-Slidtight casing 4b which is threaded tightly into 35- ing lavatory drain valve, also a side elevation of the upper side 0f the supply-head 2a. One of the Cam-tappets and 0f the tappet hOuS- This construction allows the oscillating crank-A ing in fragmentary section together with a sec- Spindle to pass operatively up into the integral tional view of the integral knob and a fragment crown 2b of the supplymead 2a, where in as- 40; 0f the threaded nipple in their relatiVely Operasembling the parts the spindle-head 4a is threadi0l tive DOSltiOnS- ed on over the upper end of the crank-spindle 4 Fig- 5 iS a fragmentary detail View in Section, and is securely fastened in that position by means showing the spring-pressed7 marker detent in the of the set-screw 6b centrally threaded down into back of the crown base and a part of the oscilthe end of the Crankspind1e lating cap of the spindle head. In assembling these parts, ywe next place the 4'51' Fig. 6 iS a fragmentary detail VieW in elevation oscillating cap 5 of thespindle-head 4a down Of the inside 0f the Oscillating Cap 0f the Spinover the integral crown 2b androtate it until the die head and the marker n0teh therein. perforation in the` cap 5, as shown in Fig. 1 co- Fig. "I is a longitudinal section in detail of the incides with the threaded matrix in the spindlehousing for the valve-tappetrs, showing the double head 4a; then we insert therein the threaded base 50' cam-tappets adapted to lift the drain valve and 6a of the oscillating handle 6 and screw it sethe header that connects them; the valve being curely into the spindle-head. Now when wel shown only in part. swing thehandle 6 horizontally, the cap 5 and This present invention of mine is a practical the spindle 4 both rotate. apparatus embOdying the aloresaid novel means Now the integral horizontal plate over the 55 upper part of the crown 2b is provided with a threaded perforation adapted to receive the threaded base 3b of the supporting rod 3a; and when this rod-base 3b is screwed down tightly into the crown 2b, the oscillating cap 5 is securely held in its normal operative position; and the shank 3c of the soap dish 3 is fitted down over the supporting rod 3a, as shown in Fig. 1.

In Fig. 1, a sectional view, the washbowl I is shown provided with its broad apron Ia and the overflow channel Ic and the usual drain opening surrounded with the boss Ib at the bottom of the bowl, adapted for the installation of drain xtures. The bowl is, also, shown provided at the back with the usual flat, horizontal-r shelf, through the large round holes in which the usual fixtures are installed; and through the middle hole in this shelf is installed as an-assentiallelement of my invention, the oscillating ,crankspindle 4 that operates my improved drain valve.l

' ing the threaded ends of the hot and cold supply pipes which might be connected thereto.

Now, this lower packing-nut I5b acts not only as a stopper for the lower end of the mixing chamber I5, but it is provided on the inside with an ordinary packing ring and thus adapted to close the lower end of the upper casing 4b of the crank-spindle 4; said spindle casing extending down through the neck 2c and the mixing chamber vI5 a predetermined distance. The central boring in the packing-nut I5b, as shown in Fig. 1 allows the spindle 4 to pass down through it and enter the lower casing 4c; and the spindle 4 is long enough to reach a little way below the reenforcing ring 4a: brazed about the casing 4c to forman extended bearing for the lock-screw 4d which is adapted to pass through the reenforcing ring im and the walls of the casing 4c and to be screwed tightly `against a long facet in one side of the round crank-spindle 4, for the purpose of locking together the crank-spindle 4 and its lower casing tlc, so that, when the crankspindle or shaft is rocked back and forth in a rotatory way, the spindle-casing 4c, also, will be rotated to the same extent.

. The oscillating crank 8 is rigidly fastened onto the lower end of the lower casing 4c of the spindle 4, by means of a thick-walled socket 8a rigidly brazed onto the broader end of the crank 8, as shown in Figs. l and 3; the crank being removably fastened to the lower end of the casing 4c by means of the set screw Bb. Consequently, it is obvious that when the oscillating handle 6 fixed in the head 4a of the crank spindle vor shaft is horizontally swung back and forth in normal operation, the crank 8, also, will be swung horizontally to the same extent. These coacting parts are adapted to be adjusted in properly assembling them.

Now at the bottom of the washbowl I, in the usual drain opening I have operatively placed a vertically-sliding waste valve I0 adapted to be operated up and down in a thick-Walled casing I I of aV predetermined length provided with a Vscrewed water-tight the threaded nipple anged head and waste-openings, IIb, IIb, in either side, shown in Fig. 3, to allow the passage of waste-water from the over-flow channel Ic; said valve-casing being further provided with threads around its outer side and adapted to be fixed water-tight in its functional place by means of a lock-nut IIa. And to be threaded onto the lower end of the casing Il, I have designed a housing I2 for valve tappets adapted to be screwed up a Vcertain distancev on the lower end of casing I I and to be securely held in this position by means of a lock-nut I2a. And the locknuts IIa and IZa are so designed with extensions of certain lengths reaching out towards each other'th'at the socket-like extension of lock-nut 12a telescopes over the extension of lock-nut IIa when they are set in their functional positions; the object being to cover the threads on the casing II intervening between said nuts when they are functionally set.

In the backside of the tappet housing I 2 I have provided a threaded opening into which is IZd which terminates at its outer end in a solid knob IZy, centrally bored to allow the horizontal sliding red I3c to pass therethrough, the outer end of said boring being counterbored and threaded to a certain depth and adapted for the installation of av packing ring I3y and its retaining packing nut I 3a: which, also, is centrally bored for the passage of said sliding rod I3c.

The vertically-sliding waste valve ID is provided with longitudinal side-sluices, |017, I0b, and is long enough to reach normally down into the tappet housing I2 and its lower end terminates in two similar contact cams, Illa, Illa diametrically opposite each other and adapted to function in a predetermined position fixed by the lock screw I2C threaded through the side cf the housing I2 and the valve casing II into the slot Illd in the side of the sliding waste valve I0, as shown in Figs. 1, 2, and 3.

This sliding drain valve I0 is opened by means of the double cam tappets I 3, I3, which I have provided in the housing I2, adapted to slide horizontally back and forth actuated by the oscillating crank 8. These double tappets I3, I3, are made up of two broad thick slabs of bronze having their butts square-cut and brazed against the inner flat surface of the rectangular header I3d shown in Figs. 1, 3 and 7, where they are set with their` edges vertically disposed parallel to each other, the same distance apart as the two contact cams I im, Ia are set at the lower ends of the vertically-sliding waste valve I0. The outer ends of these two sliding tappets terminate in two round, integral arms, 43a, I3a adapted to slide functionally back and forth in two parallel borings in the integral knob I3b on the front side of the housing I2; while the broad portions of the tappet slabs I3, I3, terminate in bevels adapted in normal operation to strike against the contact cams I Ila, lila, in such a manner as to actuate th-e vertically-sliding waste valve Ill upward a predetermined distance suflicient to open the gate IIlc and allow the waste water to flow entirely out of the washbowl I, as shown in Figs. 1 and 3.

Now into the central part of the back of the rectangular header I3d is securely fastened a round rod I3c at right angles thereto, which is long enough to reach out through the packingnut Izc which isf-screwed into the counterbore in knob |21/ of the extension IZd-of the housing I2, and through the bracket 9b of the slot-plate El, where the rod I3c is securely held locked in its operative place with the Set-screw 9c, shown in Figs. l and 3.

It can, now, be readily understood that when the oscillating handle 6 of the spindle-headla is swung through its operative arc, the spindle 4 and its lower casing 4c which is rigidly attached to the spindle 4, will be rotated, taking along with it the oscillating crank 8 through its predetermined arc; and its rigid crank-pin 8c operative in the slot of the slot-pl=ate 9 will force the slotplate 9 and its rigid bracket 9b backward carry`- ing the rigidly attached round rod I3c outward to the completion of its normally-operative stroke, a movement which will draw backward the attached header I 3d and the double cam-tappets I3, I3, into the extension chamber I2d of the housing I2, their functional distance suihcient to allow the contact-cams Illa, lua., to slide down over the beveled ends of the double cam-tappets I3, I3, which will allow the waste valve I 0 to sink down by gravity and thus close the gate I0c of the waste valve I0. And the bowl can then be filled with fresh water at the desired temperature if both hot and cold water-supply pipes are connected up and adapted to allow the water to flow into the mixing chamber I5 and up through the supply-head 2a and the faucet 2 into the washbowl I.

It is believed that no recapitulation of the operation of my invention or of the relations of its parts, is necessary, except that I might mention that adjustments of the co-acting parts may be clearly seen and easily made so that the gate I0c may be set open or closed, as preferred, when the oscillating handle 6 is stopped in a position at the front parallel to the faucet 2.

And, now, having described the various features of my invention, the detail construction, arrangement, purposes and methods of operation; those features and combinations of my invention that I consider new and useful and representative of utility and efficiency on which I desire Letters Patent granted to me, I have hereinbelow set forth and specifically described in the following claims:-

1. In a lavatory fixture of the kind described, having a bowl provided with overflow and bottom waste-vents and having water-pipes with controlling valves: a drain-valve comprising, a stationary, cylindrical valve-casing having a flangehead and waste openings on either side adapted for the passage of the overow water and provided with exterior screw-threads to engage other parts, said casing being fitted water-tight in the bottom waste-vent of the bowl; lock-nuts to fasten said casing to the bowl; a hollow, cylindrical waste-valve slidably installed in said lcasing and adapted with a cap-gate on its top to stop the water in 'the bowl when the wastevalve is down in its closed position and with longiitudinal sidesluices to allow the ingress of waste-water from the bowl when the valve is raised up in its normal open position and also to allow the overflow-water to pass on when vsaid valve is normally closed, and designed with two diametrically opposite contact-cams on its lower end, integral with the sides thereof to aid in the normal operation of the waste-valve; a cam-tappet housing screwed to the lower end of said casing and provided with an integral knob on its front side and a threaded opening with a hollow nipple attached therein on its back side; double cam-tappets horizontally installed parallel to each other in said housing on a common header adapted to be moved back and forth in said hollow nipple by means of a sliding shaft attached thereto and extending out through the back end of said nipple, said cam-tappets having their front ends slidably supported in said knob and their back ends rigidly xed to said header and adapted to strike operatively the contactcams on the'lower end of said sliding wastevalve, raising the valve to open it, as the cam-l tappets are moved forward, thus affording a full, clear passage way, for the waste-water and inter-mingled lint; and a waste-valve handle and coacting mechanism adapted to actuate said sliding shaft back and forth to close and open said waste-valve, as described.

2. In a lavatory drain valve, the combination with a lavatory bowl having supply water-pipes with controlling valves and provided with overflow and bottom waste-vents, of a cylindrical Valve-casing having a flange-head and wasteopenings on either side near the flange-head thereof for the passage of water from the overflow channel, said casing being provided With exterior threads along the lower part thereof and being fitted water-tight in the bottom wastevent of said bowl by means of lock-nuts; a hollow cylindrical waste-Valve, smooth inside and outside and designed to be slidingly installed in said valve-casing slip-fitting closely therein; means on the top of said sliding valve designed to stop the water in the bowl when the valve is down in its closed position; vertical sluices in the sides of the hollow waste-valve adapted to allow the ingress of water from the bowl when the valve is raised up to its open position and, also, to allow any water from the overflowvent to pass on when said waste-valve is down and the bottom waste-Vent of the bowl is closed; two diametrically opposite contact-cams on the lower end of said sliding waste-valve, integral therewith and in line with the walls thereof and adapted to aid in the normal operation of the said waste-Valve; a cam-tappet housing screwed to the lower end of said valve-casing; an integral knob on its front side and a threaded opening and a hollow nipple attached therein on the back side; double cam-tappets horizontally installed parallel with each other, in said housing, on a common header adapted to be moved back and forth in said hollow nipple by means of a sliding shaft rigidly attached to the back side of said header and extending out through the back end of said nipple, said cam-tappets having their front ends slidably supported in said knob and their back ends rigidly fixed to said header, the cam-tappets being adapted to strike operatively the contact-cams on the lower end of said sliding waste-valve, raising the valve to open it, as the cam-tappets are moved forward, affording a full clear passage way for the wastewaiter down through the hollow waste-valve; and manually operative mechanism connected with said sliding shaft and attached to said bowl and. adapted to operate said sliding-shaft to open and close said waste-valve, as described.

3. In a lavatory bowl of the kind described provided with water supply pipes and having an overflow-vent and an over-flow channel up in the side thereof and a waste-vent in the bottom of said bowl: a lavatory drain-valve comprising, a valve casing fixed in the waste-vent in the bottom of said bowl; a sliding waste-valve installed in the Valve casing; means to prevent its rotation therein; means for allowing the water to pass from the bottom of the bowl when the valve is open and from the overflow-vent when the waste-Valve, said cam-tappets being adapted to open and close said Valve as they are moved forward and backward; and manually operative means attached to said bowl adapted to move said oam-tappet forward and backwards to 5.

open and close said valve, as described.

FRANK H. SCHNEIDER. 

